import type { PluginListenerHandle } from '@capacitor/core';
/**
 * Configuration options for uploading a file.
 *
 * @since 0.0.1
 */
export interface UploadFileOption {
    /**
     * The local file path of the file to upload.
     * Can be a file:// URL or an absolute path.
     *
     * @since 0.0.3
     */
    filePath: string;
    /**
     * The form field name for the file part when using multipart upload.
     *
     * If omitted, `uploadOption.fileField` is used (defaults to `'file'`).
     *
     * @since 0.0.3
     */
    fieldName?: string;
    /**
     * The MIME type of this file.
     * If not specified, the plugin will attempt to determine it automatically.
     *
     * @since 0.0.3
     */
    mimeType?: string;
}
/**
 * Options for starting a single-file multipart upload.
 *
 * @since 8.3.2
 */
export interface UploadMultipartOptions {
    /**
     * The server URL endpoint where the multipart request should be sent.
     *
     * @since 8.3.2
     */
    url: string;
    /**
     * The local file path of the file to upload.
     * Can be a file:// URL or an absolute path.
     *
     * @since 8.3.2
     */
    filePath: string;
    /**
     * The form field name for the uploaded file part.
     *
     * @since 8.3.2
     */
    fieldName: string;
    /**
     * Additional form fields to include in the multipart request.
     *
     * @since 8.3.2
     */
    fields?: {
        [key: string]: string;
    };
    /**
     * HTTP headers to send with the upload request.
     *
     * @since 8.3.2
     */
    headers?: {
        [key: string]: string;
    };
}
export interface uploadOption {
    /**
     * The local file path of the file to upload.
     * Can be a file:// URL or an absolute path.
     *
     * If you need to upload multiple files in a single multipart request, use `files`.
     *
     * @since 0.0.1
     */
    filePath?: string;
    /**
     * Multiple files to upload in a single request.
     *
     * When provided, uploads are sent as `multipart/form-data` with one part per file.
     * Use `fieldName` to control each part name (e.g. `images[]`).
     *
     * Note: `PUT` uploads (e.g. presigned S3 URLs) only support a single file.
     *
     * @since 0.0.3
     */
    files?: UploadFileOption[];
    /**
     * The server URL endpoint where the file should be uploaded.
     *
     * @since 0.0.1
     */
    serverUrl: string;
    /**
     * The title of the upload notification shown to the user.
     * Android only.
     *
     * @default 'Uploading'
     * @since 0.0.1
     */
    notificationTitle?: string;
    /**
     * HTTP headers to send with the upload request.
     * Useful for authentication tokens, content types, etc.
     *
     * @since 0.0.1
     * @example
     * ```typescript
     * headers: {
     *   'Authorization': 'Bearer token123',
     *   'X-Custom-Header': 'value'
     * }
     * ```
     */
    headers: {
        [key: string]: string;
    };
    /**
     * The HTTP method to use for the upload request.
     *
     * @default 'POST'
     * @since 0.0.1
     */
    method?: 'PUT' | 'POST';
    /**
     * The MIME type of the file being uploaded.
     * If not specified, the plugin will attempt to determine it automatically.
     *
     * @since 0.0.1
     * @example 'image/jpeg', 'application/pdf', 'video/mp4'
     */
    mimeType?: string;
    /**
     * Additional form parameters to send with the upload request.
     * These will be included as form data in multipart uploads.
     *
     * @since 0.0.1
     */
    parameters?: {
        [key: string]: string;
    };
    /**
     * The maximum number of times to retry the upload if it fails.
     *
     * @since 0.0.1
     * @default 0
     */
    maxRetries?: number;
    /**
     * The type of upload to perform.
     * - 'binary': Uploads the file as raw binary data in the request body
     * - 'multipart': Uploads the file as multipart/form-data
     *
     * @default 'binary' when `method` is `'PUT'`, otherwise `'multipart'`
     * @since 0.0.2
     */
    uploadType?: 'binary' | 'multipart';
    /**
     * The form field name for the file when using multipart upload type.
     * Only used when uploadType is 'multipart'.
     *
     * For multi-file uploads via `files`, this is used as the default field name
     * when a file entry does not specify `fieldName`.
     *
     * @default 'file'
     * @since 0.0.2
     */
    fileField?: string;
}
/**
 * Event emitted during the upload lifecycle.
 *
 * @since 0.0.1
 */
export interface UploadEvent {
    /**
     * The current status of the upload.
     * - 'uploading': Upload is in progress
     * - 'completed': Upload finished successfully
     * - 'failed': Upload encountered an error
     *
     * @since 0.0.1
     */
    name: 'uploading' | 'completed' | 'failed';
    /**
     * Additional data about the upload event.
     *
     * @since 0.0.1
     */
    payload: {
        /**
         * Upload progress percentage from 0 to 100.
         * Only present during 'uploading' events.
         *
         * @since 0.0.1
         */
        percent?: number;
        /**
         * Error message if the upload failed.
         * Only present during 'failed' events.
         *
         * @since 0.0.1
         */
        error?: string;
        /**
         * HTTP status code returned by the server.
         * Present during 'completed' and 'failed' events.
         *
         * @since 0.0.1
         */
        statusCode?: number;
    };
    /**
     * Unique identifier for this upload task.
     *
     * @since 0.0.1
     */
    id: string;
    /**
     * Unique identifier for this specific event instance.
     * Only present on 'completed' and 'failed' events.
     * Used with acknowledgeEvent() to confirm receipt and remove the event from the plugin cache.
     * Progress ('uploading') events do not have an eventId and are not persisted.
     *
     * @since 0.0.2
     */
    eventId?: string;
}
/**
 * Capacitor Uploader Plugin for uploading files with background support and progress tracking.
 *
 * ### iOS setup
 *
 * On iOS the native layer uses a background `URLSession` with the identifier
 * `CapacitorUploaderBackgroundSession`. Many apps can upload without adding
 * `UIBackgroundModes`; add `fetch` when you need uploads to continue after the app
 * is suspended.
 *
 * App Store Connect rejects builds that declare `UIBackgroundModes` → `processing`
 * without `BGTaskSchedulerPermittedIdentifiers`. This plugin does not schedule
 * `BGTaskScheduler` work, so avoid `processing` unless another feature needs it.
 * If `processing` is present (for example from older setup guides), include
 * `CapacitorUploaderBackgroundSession` in `BGTaskSchedulerPermittedIdentifiers`
 * in your app's `Info.plist`.
 *
 * @example
 * ```xml
 * <key>UIBackgroundModes</key>
 * <array>
 *   <string>fetch</string>
 * </array>
 * <key>BGTaskSchedulerPermittedIdentifiers</key>
 * <array>
 *   <string>CapacitorUploaderBackgroundSession</string>
 * </array>
 * ```
 *
 * @since 0.0.1
 */
export interface UploaderPlugin {
    /**
     * Start uploading a file to a server.
     *
     * The upload will continue in the background even if the app is closed or backgrounded.
     * Listen to upload events to track progress, completion, or failure.
     *
     * @param options - Configuration for the upload
     * @returns Promise that resolves with the upload ID
     * @throws Error if the upload fails to start
     * @since 0.0.1
     * @example
     * ```typescript
     * const { id } = await Uploader.startUpload({
     *   filePath: 'file:///path/to/file.jpg',
     *   serverUrl: 'https://example.com/upload',
     *   headers: {
     *     'Authorization': 'Bearer token'
     *   },
     *   method: 'POST',
     *   uploadType: 'multipart',
     *   fileField: 'photo'
     * });
     * console.log('Upload started with ID:', id);
     * ```
     *
     * @example
     * ```typescript
     * const { id } = await Uploader.startUpload({
     *   serverUrl: 'https://api.example.com/upload',
     *   method: 'POST',
     *   uploadType: 'multipart',
     *   files: [
     *     { filePath: 'file:///...photo1.jpg', fieldName: 'images[]', mimeType: 'image/jpeg' },
     *     { filePath: 'file:///...photo2.jpg', fieldName: 'images[]', mimeType: 'image/jpeg' },
     *   ],
     *   parameters: { albumId: '7' },
     *   headers: { Authorization: 'Bearer token' },
     * });
     * console.log('Upload started with ID:', id);
     * ```
     */
    startUpload(options: uploadOption): Promise<{
        id: string;
    }>;
    /**
     * Start uploading a single file as multipart/form-data.
     *
     * This is a convenience API for backends that expect a named file field and
     * additional form fields. Existing `startUpload` binary uploads are unchanged.
     *
     * @param options - Configuration for the multipart upload
     * @returns Promise that resolves with the upload ID
     * @throws Error if the upload fails to start
     * @since 8.3.2
     * @example
     * ```typescript
     * const { id } = await Uploader.uploadMultipart({
     *   url: 'https://example.com/upload',
     *   filePath: 'file:///path/to/file.jpg',
     *   fieldName: 'photo',
     *   fields: { albumId: '7' },
     *   headers: { Authorization: 'Bearer token' },
     * });
     * console.log('Upload started with ID:', id);
     * ```
     */
    uploadMultipart(options: UploadMultipartOptions): Promise<{
        id: string;
    }>;
    /**
     * Cancel and remove an ongoing upload.
     *
     * This will stop the upload if it's in progress and clean up resources.
     *
     * @param options - Object containing the upload ID to remove
     * @returns Promise that resolves when the upload is removed
     * @throws Error if the upload ID is not found
     * @since 0.0.1
     * @example
     * ```typescript
     * await Uploader.removeUpload({ id: 'upload-123' });
     * ```
     */
    removeUpload(options: {
        id: string;
    }): Promise<void>;
    /**
     * Listen for upload progress and status events.
     *
     * Events are fired for:
     * - Upload progress updates (with percent)
     * - Upload completion (with statusCode)
     * - Upload failure (with error and statusCode)
     *
     * @param eventName - Must be 'events'
     * @param listenerFunc - Callback function to handle upload events
     * @returns Promise that resolves with a listener handle for removal
     * @since 0.0.1
     * @example
     * ```typescript
     * const listener = await Uploader.addListener('events', (event) => {
     *   if (event.name === 'uploading') {
     *     console.log(`Upload ${event.id}: ${event.payload.percent}%`);
     *   } else if (event.name === 'completed') {
     *     console.log(`Upload ${event.id} completed`);
     *   } else if (event.name === 'failed') {
     *     console.error(`Upload ${event.id} failed:`, event.payload.error);
     *   }
     * });
     *
     * // Remove listener when done
     * await listener.remove();
     * ```
     */
    addListener(eventName: 'events', listenerFunc: (state: UploadEvent) => void): Promise<PluginListenerHandle>;
    /**
     * Acknowledge receipt of an upload event and remove it from the plugin cache.
     *
     * Completed and failed events are stored in the plugin's persistent cache so they can be
     * re-delivered if the app is closed or backgrounded before the event is processed.
     * Call this method after successfully handling a 'completed' or 'failed' event to prevent
     * it from being re-broadcast the next time the plugin initialises.
     *
     * Progress ('uploading') events do not have an eventId and do not need to be acknowledged.
     *
     * @param options - Object containing the eventId to acknowledge
     * @returns Promise that resolves when the event has been removed from the cache
     * @since 0.0.2
     * @example
     * ```typescript
     * const listener = await Uploader.addListener('events', async (event) => {
     *   if (event.name === 'completed' || event.name === 'failed') {
     *     handleUploadResult(event);
     *     if (event.eventId) {
     *       await Uploader.acknowledgeEvent({ eventId: event.eventId });
     *     }
     *   }
     * });
     * ```
     */
    acknowledgeEvent(options: {
        eventId: string;
    }): Promise<void>;
    /**
     * Get the native Capacitor plugin version.
     *
     * @returns Promise that resolves with the plugin version
     * @throws Error if getting the version fails
     * @since 0.0.1
     * @example
     * ```typescript
     * const { version } = await Uploader.getPluginVersion();
     * console.log('Plugin version:', version);
     * ```
     */
    getPluginVersion(): Promise<{
        version: string;
    }>;
}